Database Administrators Stack Exchange is a question and answer site for database professionals who wish to improve their database skills and learn from others in the community. It's 100% free, no registration required.

I have a table with multiple customers. Each customer has a unique ID. Example, only one customer has ID as CustomerID = 100. The customer can be entered into the table numerous times but the CustomerID will be associated with a different ItemOrdered. The part of the table being questioned is, for example:

Questions on Database Administrators Stack Exchange are expected to relate to database administration within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.
If this question can be reworded to fit the rules in the help center, please edit the question.